However, the DNA that makes up chromosomes becomes more tightly packed during cell division and is then visible under a microscope. Most of what researchers know about chromosomes was learned by observing chromosomes during cell division.
From a career standpoint, the term âbiologistâ can have many meanings. As a biologist, you might study plants, animals, people or a particular environment. You could work in marine biology, wildlife biology or biochemistry, travel to the Brazilian rain forest to study biological compounds or work in a clinical laboratory as a microbiologist.
Biologists must have a 4-year undergraduate degree, such as a Bachelor of Science in Biology, for entry-level research positions. A few classes you may take are microbiology, anthropology, biochemistry and molecular biology.iologists, or biological scientists, work with and research living organisms. As a biologist, you'll use your knowledge and research of living organisms to try to find out what they're composed of and their relationship to what's around them.